Well derrick



Nov. 8, 1927. 1,648,268

5. o. HALE WELL DERRI C K Filed Jan. 1925 I N VEN TOR. S 1E1. O. HALE '1 ,5 I i am i. ATTORNEY.

Patented Nov. 8, 1927.

- mire-n STATES rel SAMUEL o'rrsrrA-nn, on warm-TIER, oALInoniqr as r wnLI. pension.

Application filed January 9, 192,5. SerialjNp. rates. 1

'= ends together, a plurality of adjustable rods "d r ick r ctu e The Improvements illustrated and described in this appl cation relate ma nly to and girths being employed td'stabil-ize the improved method of bracing the vertical timbers, and at the same time to provide a more efficient socketed clamping means for the sectional timbers, the said means being adjustable to provide for inequalities in the sizes of the end of the timbers that are engaged thereby, such inequalities in size being mainly due to shrinkage.

By means of my improved construction greater economy in manufacture is effected, a substantial saving in time of erection is also accomplished.

The above and other objects are accomplished by means of the construction disclosed in the accompanying specification, reference being had to the drawing forming a part thereof, in which:

Fig. 1 is a side elevation of a complete Well derrick constructed according to my 1nvention.

Fig. 2 is an enlarged sectional plan view of the same taken on line 2-2 of Fig. 1.

Fig. 3 is an enlarged partial side elevation of the derrick.

Fig. 4 is an enlarged side elevation of one of the derrick corner clamps, portions being broken away to disclose interior constructions, the truss girt beams and adjusting rods being shown attached to the clamp.

Fig. 5 is a plan view of the above.

Fig. 6 is a perspective view of a corner clamp showing its interior construction.

Referring more specifically to the drawings the derrick structure, as in my heretofore described application, consists of four vertically disposed corner timbers, each formed of a plurality of sections 10, 11, 12,

the ends being coupled together by means of corner clamps 13 formed of heavy gauge plate iron and bent in a right angle formation as shown in Fig. 6, the clamps engaging the outer faces of the abutting ends of the rages-.

vertical timbers. The legmembers "14, I5, I

"of each angle clamp are provided with a series bolt holes lfifarra'nged' in vertical formation forft'h'e reception of the ends of a plurality of rods 17' bent into right angles "adapted" to form with the corner cla'inp's 'r'e'c- I tangular timber receiving sockets, the ends i .Of the rods being threaded for'the reception'of'nuts 18, by m'eans'of which the same may be adjusted to'securely clamp the ends of the coupled timbers when inserted there- In. As "the timber reeeiving socket of each clamp is fornied of aplurality of adjustable angular rods as above described, I' am .enabledh'ot only to se'cur.ely and rigidly clamp'the abuting endsof the derricktimhers agate, b t- Such s m n avoids the necessity of jcuttingaway any portion of the timbers, which oftentimes is necessary in the case of 'fixed sockets due mainlyto vary ing sizes or the timbers. Also it "will be evident that shouldthe clamped ends of the timbers shrink due to the greenness of the timbers, the angular rods may be quickly and easily adjusted.

Each corner clamp is provided with a fiat key 20 secured by welding to the corner of the clamps, and extending towards the cor ners of the angle bars, terminating approximately midway the distance between the corners of. the clamps and bars. The keys are located midway the height of the clamps and are designed to engagediagonally disposed key slots 21 formed in the ends of the abutting timber sections, as ciearly shown in Figs. i and 5 of the drawings, when said sections are in place in the socketed clamps. These keys not only materially assist in rigidly maintaining the sectional timbers in a vertical position but prevent any turning or twisting movement imparted thereto by reason of the operation of. the heavy drilling mechanisms connected to the derrick structure.

In order to effectually stabilize the derrick structure the oppositely disposed ends of adjacent corner clamps 13, are tied together by means of horizontally disposed girths 25,

preferably formed of angle irons 26, 27, bent intermediate their ends into truss form, and

secured together at their contacting portions 28 by means of bolts 29, their ends being creased, all lateral or vertical strains or twisting actions of the timbers being absorbed thereby, the angularity of therirons 26, 2'1, also contributing in no small degree to the rigidity of the derrick structure.

Turnbuckle tension rods 80 are also employed, as in my previous application, for truing and bracing the derrick structure, the rods being arranged diagonally their hooked ends engaging apertures 81 formed in the ends of the corner clamp members as clearly shown in the various views of the draw ings. By means of these tension rods should the derrick get out of plumb due to a settling of the ground on which it is erected,

or by warping of the vertical sectional timbers, the structure may be readily returned to a normal position by an adjustment of the turnbuckles.

In order to provide an entrance for operators into the derrick, the lowermost ends of one side is provided with a door opening 32, formed by'securing the ends of a pair of vertically disposed flat bars 33, spaced apart to a cross bar 34 and the lowermost truss girth 35 as shown in Fig. 1. r

Secure-d to the vertical door bars 33, and to the corner clamps directly above the, der rick floor 36 are short girth bars 37, formed in exactly the same manner as the other gi'rths 25, heretofore described,- short turnbuckle tension rods 38, diagonally disposed connecting the three lowermost pairs of cornerclamps with the vertical bars 33 that form the derrick entrance opening.

From the above description it will be apparent that I have provided a'sectional derrick structure that may be easily assembled" in position, the adjustable corner clamps and V derrick timbers comprising an angular plate for engaging the outer sides of two abutting timbers, the two halves of said plate being of a width to extend beyond the timbers, a timber key secured in the corner of the angular plate adapted to engage key ways formed in the abutting ends of-timbers, whereby to maintain the timbers against a turning or twisting movement during an operation of the drilling mechanism, and a plurality of angular timber clamping bolts adjustably secured to thelialves of the angular plate.

In witness that I claim the foregoing I have hereunto subscribed my name this 5th day of November, 1924.

SAMUEL OTISHALE. 

